Hydrogen chloride tail gas purification device

Abstract

The invention relates to the technical field of tail gas purification equipment, and discloses a hydrogen chloride tail gas purification device which comprises two main bodies. The porous disc slides down to the large-aperture position of the fixing sleeve, the inner wall of the porous disc does not make contact with the inner wall of the fixing sleeve any more, at the moment, the porous disc can drive the adsorbent to shake under flowing of gas, static friction force among adsorbent particles can be destroyed through back flushing and shaking of the adsorbent, and then bed layer gaps are recovered, so that the adsorption effect is improved. The conditions that gaps among adsorbent particles are reduced, the density is increased and a compaction layer is formed due to long-time downward flowing of gas of the adsorbent are reduced, the flowing speed of the gas passing through the adsorbent is ensured, meanwhile, the contact area of the gas and the adsorbent is increased, the tail gas purification efficiency is improved, and the service life of the adsorbent is prolonged. The tail gas flowing stability and the utilization rate of the adsorbent during purification are further improved.

Description

Technical Field

[0001] This invention relates to the field of exhaust gas purification equipment technology, specifically a hydrogen chloride exhaust gas purification device. Background Technology

[0002] Hydrogen chloride is a colorless, non-flammable gas with an extremely pungent odor. It is denser than air and produces white fumes when it comes into contact with humid air. It is highly soluble in water to form hydrochloric acid, is highly corrosive, can react with many metals to produce hydrogen gas, can form explosive mixtures with air, and produces highly toxic hydrogen cyanide when it comes into contact with cyanide. When purifying exhaust gas using an adsorption tower, an adsorbent is typically placed inside the tower. The adsorbent contacts the exhaust gas to achieve purification. However, as the exhaust gas enters the tower and flows downwards through the adsorbent, it exerts downward pressure on the adsorbent bed. This pressure can lead to a reduction in the gaps between adsorbent particles and an increase in bed density, forming a compacted layer. This can affect the flow rate of the gas through the adsorbent and reduce the contact area between the gas and the adsorbent, thus impacting the purification efficiency and stability of the exhaust gas. Summary of the Invention

[0003] The purpose of this invention is to provide a hydrogen chloride tail gas purification device to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention is a hydrogen chloride tail gas purification device, comprising two main bodies, and further comprising; The shaking mechanism is installed inside the main body and is used to compact the adsorbent placed in the purified exhaust gas. An auxiliary mechanism is installed inside the shaking mechanism to prevent the adsorbent from spilling when the shaking mechanism is working.

[0005] Furthermore, an electromagnetic switch is fixedly connected between the two main bodies, a connecting pipe is fixedly connected to the top of the first main body, a condenser is fixedly connected to the end of the connecting pipe away from the main body, and a conveying fan is fixedly connected to the end of the main body away from the connecting pipe. A vertical pipe is fixedly connected to the top of the conveying fan, and a cyclone separator is fixedly connected to the end of the vertical pipe away from the conveying fan. An air inlet pipe is fixedly connected to the front of the cyclone separator.

[0006] Furthermore, the main body includes an outlet pipe fixedly connected to the right side of the main body, and a chlorine organic matter detection sensor is fixedly connected to the inner wall of the outlet pipe. The main body also includes: The fixing components are installed inside the main body; The sliding component is installed inside the fixed component.

[0007] Furthermore, the swaying mechanism includes several short plates disposed inside the fixed component, and the swaying mechanism also includes: The swing assembly is installed on the side wall of the short plate.

[0008] Furthermore, the auxiliary mechanisms include: Active components are installed inside fixed components.

[0009] Furthermore, the fixing component includes two fixing sleeves fixedly connected inside the main body. The bottom of the fixing sleeve is arc-shaped, and the top of the fixing sleeve is bolted with a breathable mesh. Several return springs are fixedly connected to the inner wall of the top of the fixing sleeve. Several return springs are fixedly connected to a perforated disc at their bottom.

[0010] Furthermore, the sliding assembly includes several L-plates disposed inside the fixed sleeve, with a sliding ring fixedly connected to the bottom of each L-plate, and several linear springs fixedly connected to the bottom of the sliding rings, the bottoms of the linear springs being fixedly connected to the inner wall of the fixed sleeve. The bottom of the sliding ring is fixedly connected to a flexible layer, and the end of the flexible layer away from the L plate is fixedly connected to the bottom inner wall of the fixed sleeve.

[0011] Furthermore, the tops of several short plates are fixedly connected to the bottom of L-plate one; The swing assembly includes an L-plate 2 rotatably connected to the side wall of the short plate, and a horizontal plate is fixedly connected to the side wall of the L-plate 2.

[0012] Furthermore, an arc-shaped plate is slidably connected inside the horizontal plate, and an intermediate plate is rotatably connected to the side of the arc-shaped plate away from the horizontal plate. The side of the intermediate plate away from the arc-shaped plate is rotatably connected to the side wall of the short plate.

[0013] Furthermore, the movable component includes several movable plates 1 that are rotatably connected to the inner wall of the fixed sleeve, and movable plates 2 are slidably connected inside the movable plates 1; The side wall of the movable plate 2 is rotatably connected to the inner wall of the fixed sleeve. A flexible layer 2 is fixedly connected between the two movable plates 2. A bending spring is fixedly connected to the side wall of the movable plate 2. The end of the bending spring away from the movable plate 2 is fixedly connected to the inner wall of the fixed sleeve.

[0014] The present invention has the following beneficial effects: 1. In this invention, as the porous disk slides down to the large-diameter area of ​​the fixed sleeve, the inner wall of the porous disk no longer contacts the inner wall of the fixed sleeve. At this time, the porous disk will cause the adsorbent to sway under the flow of gas. Through the backwash and swaying of the adsorbent, the static friction between the adsorbent particles can be destroyed, thereby restoring the bed porosity. This reduces the situation where the gap between adsorbent particles decreases, the density increases, and a compacted layer is formed due to the long-term downward flow of gas. This ensures the flow speed of gas when passing through the adsorbent, while increasing the contact area between the gas and the adsorbent. This improves the purification efficiency of the exhaust gas, further enhances the stability of the exhaust gas flow, and increases the utilization rate of the adsorbent during purification.

[0015] 2. In this invention, when the L-plate 2 swings back and forth, it guides the downward-flowing gas. At this time, under the guidance of the swinging L-plate 2, the gas can be evenly distributed on the surface of the adsorbent inside the porous disk while flowing downward. At the same time, the swinging of multiple L-plates 2 can not only guide the gas to flow downward evenly and distribute it, but also purge the top of the adsorbent with the gas, ensuring that the gas flows downward evenly and improving the uniformity of the gas passing through the adsorbent, thereby improving the adequacy of the adsorbent in purifying the gas.

[0016] 3. In this invention, when the airflow flows upward through the arc-shaped plate, the airflow reaches the top inner wall of L-plate two and is then guided by the top inner wall of L-plate two to flow back. At this time, some of the gas will circulate between L-plate two and the adsorbent. When the airflow circulates on the top of the adsorbent, the circulating airflow will roll up the adsorbent located on the top. By rolling up the adsorbent, the looseness of the adsorbent can be further ensured, and the situation where impurities in the gas adhere to the top of the adsorbent can be reduced when the adsorbent purifies the gas. This further enhances the purification efficiency of the adsorbent and improves the purification intensity of the adsorbent when purifying the gas.

[0017] 4. In this invention, when the adsorbent inside the porous disk loosens, the porous disk will reset under the contraction potential energy of the reset spring. At the same time, the second movable plate will reset under the action of the bending spring. During the reset process of the second and first movable plates, the first movable plate will push the adsorbent remaining on the second movable plate into the porous disk. After the porous disk is reset, the side walls of the first and second movable plates will adhere to the outer surface of the porous disk, ensuring the integrity of the adsorbent in purifying the exhaust gas while further improving the purification intensity and efficiency of the exhaust gas.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 This is a partial cross-sectional schematic diagram of the fixing component of the present invention; Figure 4 This is a cross-sectional plan view of the fixing component of the present invention; Figure 5 This is a bottom view of the sliding component structure of the present invention; Figure 6 This is a partial structural diagram of the swing component of the present invention; Figure 7 This is a schematic diagram of the sliding component of the present invention; Figure 8 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the active components of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 101. Condenser; 102. Conveyor fan; 103. Cyclone separator; 104. Inlet pipe; 11. Fixed assembly; 111. Fixed sleeve; 112. Ventilation mesh; 113. Return spring; 114. Perforated disc; 12. Sliding assembly; 121. L-plate one; 122. Sliding ring; 123. Flexible layer one; 2. Shaking mechanism; 201. Short plate; 21. Swing assembly; 211. L-plate two; 212. Horizontal plate; 213. Arc plate; 214. Middle plate; 3. Auxiliary mechanism; 31. Movable assembly; 311. Movable plate one; 312. Movable plate two; 313. Flexible layer two. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 - Figure 9 As shown, the present invention is a hydrogen chloride tail gas purification device, comprising two main bodies 1, and further comprising; Shaking mechanism 2 is installed inside the main body 1 and is used to compact the adsorbent placed in the purified exhaust gas. Auxiliary mechanism 3 is installed inside the shaking mechanism 2 to prevent the adsorbent from spilling when the shaking mechanism 2 is working.

[0024] An electromagnetic switch is fixedly connected between the two main bodies 1. A connecting pipe is fixedly connected to the top of the first main body 1. A condenser 101 is fixedly connected to the end of the connecting pipe away from the main body 1. A conveying fan 102 is fixedly connected to the end of the main body 1 away from the connecting pipe. A vertical pipe is fixedly connected to the top of the conveying fan 102, and a cyclone separator 103 is fixedly connected to the end of the vertical pipe away from the conveying fan 102. An air inlet pipe 104 is fixedly connected to the front of the cyclone separator 103.

[0025] The main body 1 includes an outlet pipe 105 fixedly connected to the right side of the main body 1. A chlorine organic matter detection sensor is fixedly connected to the inner wall of the outlet pipe 105. The main body 1 also includes: Fixing component 11 is installed inside the main body 1; The sliding component 12 is installed inside the fixed component 11.

[0026] The swaying mechanism 2 includes several short plates 201 disposed inside the fixed assembly 11, and the swaying mechanism 2 also includes: The swing assembly 21 is installed on the side wall of the short plate 201.

[0027] Auxiliary mechanism 3 includes: Active component 31 is installed inside fixed component 11.

[0028] The fixing component 11 includes two fixing sleeves 111 fixedly connected inside the main body 1. The bottom of the fixing sleeve 111 is arc-shaped, and the top of the fixing sleeve 111 is bolted with a breathable mesh 112. Several return springs 113 are fixedly connected to the inner wall of the top of the fixing sleeve 111. Several return springs 113 are fixedly connected to the bottom of a perforated disc 114. First, the source of the exhaust gas is connected to the intake pipe 104. At the same time, adsorbent particles are added to the perforated disc 114 inside the main body 1. Then, the conveying fan 102 is started. When the gas enters the cyclone separator 103.

[0029] The sliding assembly 12 includes a plurality of L-plates 121 disposed inside the fixed sleeve 111. A sliding ring 122 is fixedly connected to the bottom of the plurality of L-plates 121. A plurality of linear springs are fixedly connected to the bottom of the sliding ring 122. The bottom of the plurality of linear springs is fixedly connected to the inner wall of the fixed sleeve 111. A flexible layer 123 is fixedly connected to the bottom of the sliding ring 122. The end of the flexible layer 123 away from the L plate 121 is fixedly connected to the bottom inner wall of the fixed sleeve 111. When the perforated disk 114 slides downward under the push of the gas, the downward movement of the perforated disk 114 will push the sliding ring 122 downward through the L plate 121. The flexible layer 123 will be in a relaxed state when the sliding ring 122 slides.

[0030] The tops of several short plates 201 are fixedly connected to the bottom of L-plate 121; The swing assembly 21 includes an L-plate 211 rotatably connected to the side wall of the short plate 201. A horizontal plate 212 is fixedly connected to the side wall of the L-plate 211. When the gas flows downward through the breathable net 112, the gas flow will flow downward through the side walls of multiple L-plates 211. At this time, the L-plates 211 will swing back and forth during the gas flow.

[0031] An arc-shaped plate 213 is slidably connected inside the horizontal plate 212. An intermediate plate 214 is rotatably connected to the side of the arc-shaped plate 213 away from the horizontal plate 212. The side of the intermediate plate 214 away from the arc-shaped plate 213 is rotatably connected to the side wall of the short plate 201. Since the top of the intermediate plate 214 is rotatably connected to the short plate 201, when the L-plate 211 rotates to the right, the bottom of the arc-shaped plate 213 will slide inside the horizontal plate 212 under the push of the intermediate plate 214.

[0032] The movable component 31 includes several movable plates 311 rotatably connected to the inner wall of the fixed sleeve 111, and movable plates 312 are slidably connected inside the movable plates 311. The side wall of the second movable plate 312 is rotatably connected to the inner wall of the fixed sleeve 111. A flexible layer 313 is fixedly connected between the two movable plates 312. A bending spring is fixedly connected to the side wall of the second movable plate 312. The end of the bending spring away from the second movable plate 312 is fixedly connected to the inner wall of the fixed sleeve 111. The second movable plate 312 will be reset under the action of the bending spring. During the reset process of the second movable plate 312 and the first movable plate 311, the first movable plate 311 will push the adsorbent remaining on the second movable plate 312 into the porous disk 114.

[0033] In use, the exhaust gas source is first connected to the intake pipe 104, and adsorbent particles are added to the porous disc 114 inside the main body 1. Then, the conveying fan 102 is started. When the gas enters the cyclone separator 103, the cyclone separator 103 separates the liquid organic matter in the gas. Then, an external pipe is connected to the bottom of the cyclone separator 103 and the separated liquid is discharged through the pipe. The separated gas is then conveyed by the conveying fan 102 into the condenser 101, where the gas condenses into liquid. The gas then enters one of the main bodies 1. After the gas enters the main body 1, the adsorbent adsorbs the harmful substances in the gas, and the purified gas is discharged out through the exhaust pipe 105. Since the exhaust pipe 105 is equipped with a chlorine and organic matter detection sensor, when the chlorine and organic matter content in the gas increases, the exhaust pipe 105 will control the electromagnetic switch to switch between the two main bodies 1, thereby achieving gas purification.

[0034] When the gas flows downward through the permeable mesh 112 and is purified by the adsorbent, the adsorbent is prone to compaction due to the prolonged downward flow of the gas. When the adsorbent becomes compacted under prolonged gas flow, the gaps between the adsorbent molecules decrease, creating resistance as the gas passes through. With subsequent continuous gas intake, the compacted adsorbent pushes the porous disk 114 downwards. As the porous disk 114 slides downwards, it reaches the large aperture of the fixed sleeve 111 and stretches the return spring 113. At this point, some gas flows downwards through the adsorbent, while some flows downwards between the fixed sleeve 111 and the porous disk 114. Simultaneously, as the porous disk 114 slides downwards under the pressure of the gas, its downward movement pushes the sliding ring 122 downwards via the L-plate 121. The flexible layer 123 remains relaxed during the sliding of the sliding ring 122. At this time, the flexible layer 123 is in a relaxed state during the airflow direction. During downward flow, the gas adheres to the arc surface at the bottom of the fixed sleeve 111. Then, as the gas flows downward between the porous disk 114 and the inner wall of the fixed sleeve 111, the gas is guided by the arc surface at the bottom of the fixed sleeve 111 towards the bottom of the porous disk 114, generating an upward recoil force on the bottom of the porous disk 114 and the adsorbent inside. Simultaneously, as the porous disk 114 slides down to the large aperture of the fixed sleeve 111, the inner wall of the porous disk 114 no longer contacts the inner wall of the fixed sleeve 111. At this point, the porous disk 114 causes the adsorbent to sway under the flow of gas. Through the recoil and swaying of the adsorbent, the static friction between the adsorbent particles can be broken, thereby restoring the bed porosity. This reduces the reduction in gaps and density of the adsorbent particles caused by prolonged downward gas flow, resulting in a compacted layer. This ensures the flow velocity of the gas through the adsorbent while increasing the contact area between the gas and the adsorbent, improving the purification efficiency of the exhaust gas, further enhancing the stability of the exhaust gas flow and the utilization rate of the adsorbent during purification.

[0035] When the porous disk 114 slides the adsorbent downwards, the adsorbent separates from the bottom of L-plate 211. At this time, L-plate 211 can sway on the side wall of the short plate 201. Simultaneously, when the gas flows downwards through the permeable mesh 112, the gas flow passes through the side walls of multiple L-plates 211. During this gas flow, L-plates 211 sway back and forth, guiding the downward-flowing gas. Under the guidance of the swaying L-plates 211, the gas can flow downwards and be evenly distributed on the surface of the adsorbent inside the porous disk 114. At the same time, the swaying of multiple L-plates 211 can not only guide the gas to flow downwards evenly and distribute it, but also purge the top of the adsorbent with the gas, ensuring that the gas flows downwards evenly and improving the uniformity of the gas passing through the adsorbent, thus improving the adequacy of the adsorbent in purifying the gas.

[0036] When L-plate 211 rotates to the right during gas flow, its rotation causes the horizontal plate 212 to rotate synchronously. Since the top of the intermediate plate 214 is rotatably connected to the short plate 201, when L-plate 211 rotates to the right, the bottom of the arc-shaped plate 213 slides within the horizontal plate 212 under the push of the intermediate plate 214. At this time, the arc-shaped plate 213 forms an arc surface on the side wall of L-plate 211. As the gas flows downwards along the inclined side wall of L-plate 211, the downward-flowing gas is influenced by the arc surface of the arc-shaped plate 213 and flows upwards. When the airflow passes the arc-shaped plate... When the gas flows upward, it is guided by the inner wall of the top of L-plate 211 and flows back. At this time, some of the gas will circulate between L-plate 211 and the adsorbent. When the airflow circulates on the top of the adsorbent, the circulating airflow will roll up the adsorbent at the top. Rolling up the adsorbent can further ensure the looseness of the adsorbent and reduce the situation where impurities in the gas adhere to the top of the adsorbent when the adsorbent purifies the gas. This further enhances the purification efficiency of the adsorbent and increases the purification intensity of the adsorbent when purifying the gas.

[0037] When the porous disk 114 slides down to the large-diameter area of ​​the fixed sleeve 111, the edge of the porous disk 114 will be between multiple flexible layers 313. Subsequently, when the porous disk 114 shakes under the flow of air, the shaking of the porous disk 114 will push the movable plate 311 and the movable plate 312. At this time, the movable plate 312 will rotate downward under the shaking of the porous disk 114. When the movable plate 312 rotates downward, it will squeeze the inclined surface at the bottom of the movable plate 311. At this time, the movable plate 311 will rotate upward during the downward rotation of the movable plate 312. Subsequently, when the adsorbent inside the porous disk 114 leaks outward under the drive of the circulating airflow, the leaked adsorbent will be in the movable plate 311. At the top of plate 2, the sidewall of movable plate 2 312 can intercept the spilled adsorbent. Then, when the adsorbent inside the porous disk 114 loosens, the porous disk 114 will reset under the contraction potential energy of the reset spring 113. At the same time, movable plate 2 312 will reset under the action of the bending spring. During the reset process of movable plate 2 312 and movable plate 1 311, movable plate 1 311 will push the adsorbent remaining on movable plate 2 312 into the porous disk 114. After the porous disk 114 is reset, the sidewalls of movable plate 1 311 and movable plate 2 312 will adhere to the outer surface of the porous disk 114, ensuring the integrity of the adsorbent when purifying the exhaust gas and further improving the purification intensity and efficiency of the exhaust gas.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hydrogen chloride tail gas purification device, comprising two main bodies (1), characterized in that, Also includes; Shaking mechanism (2), the shaking mechanism (2) is installed inside the main body (1) and is used to compact the adsorbent when it is placed in the purified exhaust gas; An auxiliary mechanism (3) is installed inside the shaking mechanism (2) to prevent the adsorbent from leaking when the shaking mechanism (2) is working.

2. The hydrogen chloride tail gas purification device according to claim 1, characterized in that: An electromagnetic switch is fixedly connected between the two main bodies (1). A connecting pipe is fixedly connected to the top of the first main body (1). A condenser (101) is fixedly connected to the end of the connecting pipe away from the main body (1). A conveying fan (102) is fixedly connected to the end of the main body (1) away from the connecting pipe. A vertical pipe is fixedly connected to the top of the conveying fan (102), and a cyclone separator (103) is fixedly connected to the end of the vertical pipe away from the conveying fan (102). An air inlet pipe (104) is fixedly connected to the front of the cyclone separator (103).

3. The hydrogen chloride tail gas purification device according to claim 1, characterized in that: The main body (1) includes an outlet pipe (105) fixedly connected to the right side of the main body (1), and a chlorine organic matter detection sensor is fixedly connected to the inner wall of the outlet pipe (105). The main body (1) also includes: A fixing component (11) is installed inside the main body (1); A sliding component (12) is installed inside the fixed component (11).

4. The hydrogen chloride tail gas purification device according to claim 3, characterized in that: The swaying mechanism (2) includes several short plates (201) disposed inside the fixed component (11), and the swaying mechanism (2) further includes: A swing assembly (21) is mounted on the side wall of the short plate (201).

5. The hydrogen chloride tail gas purification device according to claim 4, characterized in that: The auxiliary mechanism (3) includes: The active component (31) is installed inside the fixed component (11).

6. The hydrogen chloride tail gas purification device according to claim 1, characterized in that: The fixing component (11) includes two fixing sleeves (111) fixedly connected inside the main body (1). The bottom of the fixing sleeve (111) is arc-shaped, and the top of the fixing sleeve (111) is bolted with a breathable mesh (112). Several return springs (113) are fixedly connected to the top inner wall of the fixing sleeve (111). A perforated disc (114) is fixedly connected to the bottom of several of the aforementioned return springs (113).

7. The hydrogen chloride tail gas purification device according to claim 6, characterized in that: The sliding assembly (12) includes a plurality of L-plates (121) disposed inside the fixed sleeve (111), and a sliding ring (122) is fixedly connected to the bottom of the plurality of L-plates (121). A plurality of linear springs are fixedly connected to the bottom of the sliding rings (122), and the bottom of the plurality of linear springs is fixedly connected to the inner wall of the fixed sleeve (111). The bottom of the sliding ring (122) is fixedly connected to a flexible layer (123), and the end of the flexible layer (123) away from the L plate (121) is fixedly connected to the bottom inner wall of the fixed sleeve (111).

8. The hydrogen chloride tail gas purification device according to claim 4, characterized in that: The tops of several short plates (201) are fixedly connected to the bottom of L plate one (121); The swing assembly (21) includes an L-plate two (211) rotatably connected to the side wall of the short plate (201), and a horizontal plate (212) is fixedly connected to the side wall of the L-plate two (211).

9. The hydrogen chloride tail gas purification device according to claim 8, characterized in that: An arc-shaped plate (213) is slidably connected inside the horizontal plate (212). An intermediate plate (214) is rotatably connected to the side of the arc-shaped plate (213) away from the horizontal plate (212). The side of the intermediate plate (214) away from the arc-shaped plate (213) is rotatably connected to the side wall of the short plate (201).

10. A hydrogen chloride tail gas purification device according to claim 6, characterized in that: The movable component (31) includes a plurality of movable plates (311) rotatably connected to the inner wall of the fixed sleeve (111), and movable plates (312) are slidably connected inside the movable plates (311). The side wall of the movable plate 2 (312) is rotatably connected to the inner wall of the fixed sleeve (111). A flexible layer 2 (313) is fixedly connected between the two movable plates 2 (312). A bending spring is fixedly connected to the side wall of the movable plate 2 (312). The end of the bending spring away from the movable plate 2 (312) is fixedly connected to the inner wall of the fixed sleeve (111).

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